Can-soldering machine



(No Model.) f 4-sheets-sheet 1..

C. B. MGDONALD 8v W. WAGNER.

` GAN SOLDBRING MACHINE. No. 391,171. Patented Oct. 1.6, 1888.

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(No mow.) 4 sheets-sheet 2.

C. B. MGDONALD & W. WAGNER.

GAN SOLDERING MACHINE.

No. 391,171.- Patented Oct. 16, 1888.

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N. PETERS. Photo-Lahugpher. wamingmn. D. C.

(No Model.) 4 sheets-sheet 3.

C. B. MGDONALD 8v W. WAGNER.

GAN SOLDERING MACHINE.

No. 391,171. Patented Oct. 16, 1888.

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(NoModel.) 4 Sheets-Sheet 4.. C. B. MGDONALD 8v' W. WAGNER.

GAN SOLDBRING MAGHINE.

No. 391,171. Patented Oct. 16, 1888.

N. PETERa FhowLimogmpher. Wnsmngean, D. CA

UNrTao STaTas PATENT Ferca.

CHARLES B. MODONALD AND WALTER WAGNER, OF CHICAGO, ILLINOIS.

CAN-SOLDRING MACHINE.

SPECIFICATION forming part of Letters Patent No. 391,171, dated October16, 1888.`

Application filed May 2l, IESS. Serial No. 274.473. (No model.)

To all whom it may concern:

Be it known that we, CHARLEs B.l MoDoN ALD, a citizen of the UnitedStates, and WAL- TER VAGNER, a citizen of Switzerland, residing atChicago, in the county ot' Cook and State of Illinois, have inventedcertain new and useful Improvements in Can-Soldering Machines, which arefully set forth in the following specification, reference being had tothe accompanying drawings, forming a part hereof, and in which- Figure 1shows our improved can soldering machine in side elevation, as seen fromthe front or working side thereof. Fig. 2 shows on an enlarged scale, onthe line x x of Fig. 1, a transverse View through the soldering-pots andthe positions of a can in each soldering pot. Fig. 3 shows a transverseview of the machine on a plane, y y, of Fig. l, the position of thecanearricr with its chucks open in the lower and closed in the upperposition, and the end of the chuck-spindle 2in its groovem. Fig. 4 showsan enlarged view of a link and its can-carrier in vertical endelevation, taken on the plane x .t of Fig. 6, as seen from the forwardend of said Fig. (i. Fig. 5 is a rear view of an entire chain-link andits rollers, with a eancarrier and its lever and springs. Fig. 6 showsin plan an entire chain-link and its attached rollers and all thatpartof the canscarrier below the planeyyof Fig. 4. Fig. 7 shows thelever t" and its attached parts in plan vlew.

Like letters of reference refer to like parts.

The object of our invention is to construct a canvsoldering machine inwhich both ends of the can are soldered to the eanbody bya singieinsertion of can into the machine, and to prevent the solder fromflowing to one side or lumping` byeansing the can to assume a verticalposition immediately after being soldered; and to attain said ends weconstruct our improved can-soldering machine substantially as follows,namely:

XVe mount an endless chain or belt, a, upon two drums or wheels, b b',which preferably, and as here shown, run in a vertical plane. The shaftsof said wheels are carried on bars c, which connect two uprightstandards, d, at each end of the machine. A similar standard is placedin the middle of the machine and is connected to said end standards bymeans of conneetingbars. Upon one side of the chain each link has a pairof lugs or arms, e, between which and on pinsfis hinged acan carrier, g,which is free to revolve in a plane around and at right angles to theaxes ofthe pinsf, which enter into the ends of the short shaft g',forming a part of the can-carrier g. Each chainlink has at one end apair of lugs or arms, a2, and at its opposite end a single central lug,a', which passes between the two lugs a2 of the next preceding orsucceeding link, as plainly shown in Fig.6,and which are there connectedby means of a pin, a3, passing through said lugs, so as to permit saidjoint to work freely when the chain is passing around said drums, and oueach of the ends of said pin or pins c, outside of the lugs a2, aremounted rollers a4 c5, the former a plain drum and the latter pro videdwith a flange at both its ends.

Each joint ofthe endless chain is made and provided with rollers, asjust described, and is carried upon tracks or chain-carriers a al,attached to the standards d. Said tracks a c7 are placed, respectively,above and beneath the rollers c a?, to guide and keep the links ofthechain moving in a true line.

The weight ofthe can-carrier g and its load tends to twist each link ofthe chain from a horizontal toward a vertical plane around the pulleyc5, and therefore the track a is above the roller a4 and the track alunder the roller a5. The flanges on each side of the rollers c5 willcause them and all attached parts to move in a true vertical plane withthe track a7. There is also a hood or semicircular covering, b, aroundthe outer half oi' the wheels b b to hold the links and their pulleys a*w" in place while they pass from the tracks over and around the outerhalves of said drums.

The tendency of the cancarrier g is to fall into a horizontal positionat right angles to that shown iu Fig. 3 as it hangs and turns freely onthe pinsf; but the desired normal position of the axis of the cans isvertical to the chain-carriers or tracks or the chain on said tracks.Therefore, in order to keep the carrier vertical or inclined at suchtimes and places as desired, suitable cams, tracks, and guides-areemployed, as hereinafter shown.

The opening or receiving end of the machine is from the points h to hif, the points h h h2 indicating a cam which serves to open the 2 estivii chucks to discharge the finished can, and also short rise, h', at theouter end of which it forms an approximately continuous circle from. thecenter until it comes to a point vertically below the center ofthewheel-shaft,after which it continues its surface as a tangent to saidcircle until it reaches the point h2, where it gradually rounds offupward at about therelative distance from the wheel-shaft, as shown inFig. 1, or at a point which is back far enough to permit the chucks t'to close upon the can ends before the lower roller, ix, on the cam jgets to the receding curve j, which forms a part of the cam j.

The chucks 13 are opened by means of said cam at the point h', whichthere depresses the roller'iand springithus separatingthechueks t',where they discharge the cans from the machine and where they may fallinto any suitable conductor or hopper and through it be led off to anysuitable receptacle.

After the chucks t' reach the position vertically under the tangent partof said cam they are horizontal and ready to receive cans which arethere fed into the machine as they pass along under said cam,which ismade long, so as to allow plenty of time to feed the cansinto it.

Upon each of the shafts of the wheels b and b is mounted asemicircularguide, m, in which the wheel-shaft turns. Said cam is held in place bymeans of a hub which reaches back to and is attached to the hub of thecam h hh, also mounted loosely on the same shaft in the same manner andheld from turning by means of a connecting-bar, h3, connected to somepart of the frame, as to the cam or bar j, (shown in Fig. 1,) or bymeans of a bar, h, connected to the frame d, or by any similar device.

At about the middle of the receding part of the can1j-thatis, in themiddle of the cam jz-begins the lower solder-trough, k, which is madelong enough to permit each can to make several complete revolutions init from the time it dips into until it leaves its fluid solder. Saidtrough k is held on brackets 7a2 and arranged so that the surface of thesolder may be nicely adjusted to the can. In this case the bed-plate 7a4of the trough k is shown held by a screw-bolt, la, through the bracket7a2, and when necessary wedges (not shown) may be driven under thebedplate to adjust the trough 7c, and on said bracket, or attached tothe frame of the machine, is held a cam, js, both ends of which havecams bent so as to be about parallel to the ends 7'2 of the cams j',which they overlap. Said cam ja, as also the cam jt, is so placedas tocause the upper roller, ix, to fall upon it when the caucarrier g isreleased from the lower cam, j ji. Said roller by its friction causesits can to revolve, as shown by the arrows, with the motion of thechain, so as to give the edge dipping into the solder sufficient time tobecome thoroughly soldered during the time that the can -is pass ingthrough said soldering-trough.

At the fart-her, end of the solder-pot k the cam j3 is formed just as itis at the near end, and thereby as the can advances it again risestoward the perpendicular, and there the lower roller, z', is caught by areceding portion,j2, on a cam, j, made in every way in this respect asthe cam j' at the front of the soldering-pot, except that it points inthe opposite direction, from which it is again raised and held in theperpendicular position, and through this construction the can is againcaused Ato revolve in the opposite direction, as shown by the arrows.

After the lower ends of the cans have been thus completed they pass onand over the wheel b', and thus become inverted,where by an arrangementof cams j,constructed, placed, and operating precisely as said partsalready described in passing the cans through the trough k, the nowlower edges of the cans pass into and through the trough 7c and areturned on the spindles i', in the direction indicated by the arrows,by'means of the cam j, which is constructed and arranged precisely asthe cam ja, the cans becoming through it erected as they leave thesolder pot or trough k. cans are received and held on a cam,j, andpassed along to the discharging end of the machine through mechanismconstructed and operating as already described.

The opposed revolving plates or chucks, fi, are carried on spindles i inthe same axial line, provided with rollers dx, so placed as to leave afree outer end, i2, which passes into the groove m in the semicircularguide m atl the tangential poi nt,when the roller X begins to leave thestraightcamsjjand passes around the wheels b b', by means of which thecans are held erect and guided in their passage from the lower to theupper cams, and vice versa.

On the spindle or spindles i', which are uppermost when on the lowerside of the machine, there is secured a grooved collar, i3, in thegroove of which enter the points of pins is, passed through the`opposite ends of the forked lever a Said arrangement permits a freerevolution of the spindle t, while at the same time the chucks t' may beseparated by The roo A' IIO vIIS

means of said lever, which is fulcrnmed at i5 lugs i0 and pass freelythrough i9 on the lever it.

Thewheels b b have sprockets b2, which fit into the links a, and therebysecure uniform and positive motion to all the parts.

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The mechanism may be actuated from the shaft of either of said wheels,to which suitable power may be applied. One method of doing this isillustrated in Fig. 3, Where a pulley, if, is attached to one of saiddrum-shafts and is driven by a belt, b", from a cone-pulley, as shown,and of well known construction. The said cone-pulley has a pinion, n,securely attached to it., which operates a gear-wheel, n', turningloosely on a stud attached to the frame of the machine, and attached tosaid wheel n and turning with it is a pinion, n2, which drives a wheel,n, which runs loosely on the hub ofthe said cone-pulley o, and hasattached to it a belt or chain pulley, a, from which the belt b5 drivesthe pulley b", which turns the shaft and drum b, which gives the desiredmotion to the endess chain a. Each of said wheels b b is also providedwith a groove which receives the inner flange of the rollers c5 as itpasses around them.

The advantages obtained in the herein described and claimed constructionare these, namely: There being but a single insertion or handling of thecan to solder both ends, there is but half the liability to imperfectchucking that there is where the cans have to be taken out, inverted,and rechucked. r)There is, therefore, less than half' the manual labor,and, second, when a can end has passed through the solder bath it isliable to have lumps of solder, &e., on it, which will prevent properchucking, and thereby cause the can to Wabble, and such motion willcanse imperfect soldering of the other joint, and, finally, when a canhas been soldered and is then held in a position with its axis eitherinclined or parallel to the plane of the horizon, the solder beforecooling is sure to flow more or less upon the underside of the can andcause an unsightly excess and a weakening of the upper part of thejoint,all of which we considerl serious objections and which we overcomeperfecfly in our construction.

Vhat we claim isl. In a can soldering machine adapted to automaticallyinvert and solder both ends of the can in a single passage through it, asoldering device, an endless chain moving in a vertical plane overrevolving drums and horizontal chaiirtiacks, said chain provided withhinged laterally oscillating can carriers adapted to carry the axis ofthe cans parallel to the plane of motion of said chain, said cancarriersactuated by fixed cams, and guides to hold the cancarriers whenmovingaround the drums from one set-of cams to the other, substantiallyas specified.

2. In a can-soldering machine, a soldering device, a hinge-jointedendless chain moving in a vertical plane over revolving drums andstraight chain-tracks, said chain provided with hingedlaterally-oscillating can-carriers, wherein the normal position of theaxis ofthe cans is vertical to said chain-tracks and parallel to theplane of motion of said chain, stationary cams to oscillate saidean-earricrs,and

guides to guide said can-carriers varound the revolving drums,substamtially as set forth.

3. In a can-soldering machine, an endless chain moving in a Verticalplane over revolving drums and upper and lower straight chaintracks,said chain provided with laterally-oscillating can carriers, wherein thenormal position ofthe axis of the cans is vertical to said chain-tracksand parallel to the plane of' motion of said chain, stationary cams tooscillate said can carriers, with fixed guides to guide them from cam tocani around said drums,and a soldering device under both the lower andupper horizontal parts ofsaid chain, whereby alternately the oppositecan ends are soldered, substantially as specified.

4L. In a can-soldering lnachine, an endless chain moving in a verticalplane over rcvolving drums and fixed chain-tracks, laterallyosciilatingcan-carriers which carry the axes of the cans parallel to the plane ofmotion of the chain, attached to said chain and provided with revolvingand spindled end chucks closed by a spring-actuated lever attached tosaid can-carriers and opened by a cam operating on said lever,fixed camsto give lateral oscillation to said can-carriers and to revolve saidchucks, and a solder bath, substantially as specified.

5. In a can-soldering machine, soldering devices and an endless chainmoving in a vertical plane over fixed straight chain-tracks andrevolving drums, laterally-oseillating can-carriers which carry the axesof the cans parallel to the plane of motion of the chain, provided withrevolving and spindled end chucks attached to said chain, and rollersattached to said chucks, and fixed cams on opposite sides of the planeof motion to oseillate said can-can riers and to revolve said chucks inalternately opposite directions, substantially as specified.

6. In a can-soldering machine, horizontal chain-traeks, an endless chainmoving in a vertical plane provided with hinged laterally-oseillatingcan-carriers wherein the normal position ofthe axis ofthe cans isvertical to said chain-tracks and parallel to the plane of 1no tion ofsaid chain, whereby the cans, with said carriers, through said motionbecome vertically reversed end for end, stationary cams to oscilla-tesaid can-carriers, and guides to hold said can-carriers while movingfrom one cani to the other, and a soldering device under the horizontalparts of said chain, substantially as specified.

7. In a can-soldering machine, an endless chain having flat linksprovided with hinged joints moving over revolvingdru ms,said chainlinksprovided with traek-rollers on their op posite edges which run ontracks, whereof the rail nearest the earrieris under the roller and theopposite rail is over t-he opposite roller, a solder bath, and hingedlaterally-oscillating carrcarriers actuated by fixed cams, substantiallyas specified.

8. In a can-soldering machine, a soldering device, an endless chainhaving liatlinks pro- IOO IIO

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vided on its edges with flanged rollers and hinged can-carriers, incombination with a track consisting of a pair of rails,of which the railnearest the can carrier is below and the opposite rail above the saidrollers, substantiallyy as specified.

9. In a can-soldering machine, horizontal chain-tracks, an endless chainmoving in a ver tical plane provided with hinged laterally-0scillatingcan-carriers, wherein the normal position of' the axis ofthe can isvertical to said chain-tracks and parallel to the plane of motion ofsaid chain, whereby the cans, with said carriers, th rough said motionbecome vertically reversed end for end, stationary cams to oscillatesaid can-carriers provided with revolving chucks having rollers on theirchuek-spindles, and cams to rotate said chucks, and a solder- CHARLES B.MCDONALD. VALTER WAGNER.

Vitncsses: 4

WM. ZIMMERMAN, T. VOGEL.

